PROJECTS: PINHOLE CAMERA
BUILD YOUR PINHOLE
Time: A Day or Two Complexity: Medium
1. MAKE THE BODY AND WINDER
1a. Draw a paper template for the top and bottom pieces. We’re
going to cut 2 identical D-shaped pieces of plywood; the curved
side is a 105° chord of a circle with radius 65mm (about 2. 56"),
which continues along tangent flat planes to form 2 corners that
extend ¼" past the circle’s center. Download the template I used
1b. Use a jigsaw or band saw to cut
the ½" plywood into 2 D-shaped
pieces, following your template.
1c. Clamp the 2 Ds together, and sand
until the cut perimeters are smooth
1d. Use the template to mark the spool centers on the top piece.
Drill a 2" hole for the film take-up spool, which will be on the
left as you face the camera’s curved back. Drill a 6" hole for the
supply spool on the right. In the center of the bottom piece, on
the underside, drill a ½" hole partway through.
1e. Epoxy a ¼" #20 nut into the partial hole in the bottom piece,
to make the camera’s tripod mount.
1f. Fit the 2" eye bolt through the top piece with nuts and
washers on each side, then measure the distance that the nut
opposite the winder eyelet will stick into the camera. Find a
combination of washers and nuts that fits onto the #10 bolt
(for the supply reel) and matches this height.
96 Make: Volume 09